Kaweka soil series NZ
A representative soil profile of the Kaweka series from New Zealand. (Photo provided by NZ Soils.co.nz and Waikato Regional Council.) For more information about New Zealand soils, visit;
Kaweka soils from 0 - 18 cm; Dark brown humic sandy loam. In the New Zealand Soil Classification system these are Typic Impeded Allophanic Soils. For more information about the New Zealand Soil Classification system, visit;
soils.landcareresearch.co.nz/describing-soils/nzsc/
In U.S. Soil Taxonomy, these are Typic Hapludands. Hapludands are the Udands that do not have a melanic epipedon or a layer that meets the depth, thickness, and organic-carbon requirements for a melanic epipedon. They do not have a placic horizon with its upper boundary within 100 cm of the mineral soil surface or of the upper boundary of an organic layer that has andic soil properties, whichever is shallower. They can have a lithic contact but do not have any other cemented horizon in 75 percent or more of each pedon within these depths. They have, on undried samples, a 1500 kPa water retention of less than 100 percent, by weighted average, throughout the major part of the andic materials.
Commonly, Hapludands have a thin O horizon, an ochric or umbric epipedon, and a cambic horizon. Most of the Hapludands in the United States developed in late-Pleistocene or Holocene deposits. Most formed under coniferous forest vegetation.
Udands are the more or less well drained Andisols of moist regions. These soils are moderately extensive. They are mostly on the Pacific rim, mainly in the western part of North America and in Japan, New Zealand, the Philippines, and Indonesia. Most of the Udands in the United States are in Washington and Oregon, but some are in Hawaii. Most Udands formed under forest vegetation. Characteristically, Udands have an ochric or umbric epipedon and a cambic horizon. Some have a duripan. Most of the Udands in the United States developed in late-Pleistocene or Holocene deposits.
For additional information about U.S. Soil Taxonomy, visit:
www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/cla...
Kaweka soil series NZ
A representative soil profile of the Kaweka series from New Zealand. (Photo provided by NZ Soils.co.nz and Waikato Regional Council.) For more information about New Zealand soils, visit;
Kaweka soils from 0 - 18 cm; Dark brown humic sandy loam. In the New Zealand Soil Classification system these are Typic Impeded Allophanic Soils. For more information about the New Zealand Soil Classification system, visit;
soils.landcareresearch.co.nz/describing-soils/nzsc/
In U.S. Soil Taxonomy, these are Typic Hapludands. Hapludands are the Udands that do not have a melanic epipedon or a layer that meets the depth, thickness, and organic-carbon requirements for a melanic epipedon. They do not have a placic horizon with its upper boundary within 100 cm of the mineral soil surface or of the upper boundary of an organic layer that has andic soil properties, whichever is shallower. They can have a lithic contact but do not have any other cemented horizon in 75 percent or more of each pedon within these depths. They have, on undried samples, a 1500 kPa water retention of less than 100 percent, by weighted average, throughout the major part of the andic materials.
Commonly, Hapludands have a thin O horizon, an ochric or umbric epipedon, and a cambic horizon. Most of the Hapludands in the United States developed in late-Pleistocene or Holocene deposits. Most formed under coniferous forest vegetation.
Udands are the more or less well drained Andisols of moist regions. These soils are moderately extensive. They are mostly on the Pacific rim, mainly in the western part of North America and in Japan, New Zealand, the Philippines, and Indonesia. Most of the Udands in the United States are in Washington and Oregon, but some are in Hawaii. Most Udands formed under forest vegetation. Characteristically, Udands have an ochric or umbric epipedon and a cambic horizon. Some have a duripan. Most of the Udands in the United States developed in late-Pleistocene or Holocene deposits.
For additional information about U.S. Soil Taxonomy, visit:
www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/cla...